Peters



EDWARD HAGA-N, oF-Nnw YORK, N. Y.

Letters Patent No. 81,895; dated September 8, 1868.

IMPROVEMENT IN SERVIGB-PIPES POB. BUILDINGS.

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TO ALL WHOM IT MAY CONGERN:

Be it known that I, EDWARD HAGAN, of the city, county, and State of New York, have invented a new and improved Service-Pipe for Water or Gas; and I do hereby declare that'the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a sectional representation of my invention.

Figure 2 is a detail cross-section through the linea :z: of fig. 1.

Similarletters of reference indicate corresponding parts.

The object of this invention is to facilitate the thawing ont of frozen gas and water-pipes while in place, and to provide a ready means of withdrawing and repairing such pipes, when the same require inspection or cleaning out or repair, without the necessity of digging up the whole length of ground-pipe from the main, thus avoiding delay and inconvenience and great expense. i i

The invention consists essentially in enclosing the main service-pipe, from the main to'the house, in an iron, earthen, or other sufficiently-durable case, and in providing removablejoints to the said case, and unionjoints to the pipe, at proper intervals, the removable joints being immediately' at such union-joints, whereby it is only necessary to dig down at one point to disconnect the service-pipe vfrom the street main; for, after having removed the joint ofthe case at that point, and disconnected the service-pipe from themain, by unscrewing the nut of the union-joint with any suitable pipe-tongs or wrench, the service-pipe is disconnected from the internal pipes of the building, (by unscrewing the union-joint aifording such connection,) and withdrawn from the casing, when it can be inspected and cleansed and repaired, if requisite, and returned to its proper connection, all with comparatively small delay and expense, and without the v'aid of an expert inremcving the pipe,

v as was heretofore the case.'

invention further consists in the application of devices for preserving water-communication with the Y curb-stone hydrant or street-washer, so called.

It further consists of holesor openings in the casing, at any convenient point, for the admission of steam or hot air to space within the casing, for the purpose of thawing ice formed within the pipe.

The internal pipes of the building are enclosed in similar casings, provided with reniovable doors or traps at the angles, so that the union-joints at these points may be conveniently accessible for disconnecting the pipes,

` when the same are to be withdrawn, as before described.

The internal casings may be made of wood, and., in practice, this material would be economical and admissible, as the casings would traverse the inner walls of the building, and be unexposed to any considerable moisture. These inner casings would be let into the wall with the outer surfaccjnst beneath the plastering, or dash with the same.

I have not attempted to elaborate or amplify the means of thus protecting the water and gas-pipes of buildings, as the form and arrangement of particular buildings would require special consideration and arrangement of' the pipes and casings to suit the circumstances of the case, but will proceed to describe the apparatus with reference to the drawings, in which are shown the principles of my invention. l

A is the street main, usually 'provided with a cock, B, at which the elbow C is attached. The service-pipe D is attached to this elbow or angle-pipe C by the union-joint H, a device well known to plumbers and others.

l The service-'pipe is enclosed by the casing-pipe G, of iron or earthen, which is provided with the halved joint E, having flanges b b to affix it to the corresponding flange ofthe pipe G.

Thisjoint is in two parts, as shownat g. 2, and is for the purpose of protecting the union-joint H from the surrounding earth. v

The collar a fits on the pipe D and on the casing-pipe G, being made steam-tight with red lead or other suitable cement. y

d is an aperture,l for admitting steam or hot air, the same being conducted by a pipe from the generator to the aperture. i

In vmany commercial buildings, the steam-boiler is available without providing other steam-generating apparatus. Y

I is the union-joint, connecting the` pipe D with the T-joint, provided for the purpose of returning Water through the pipe L to the plug or hydrant M, for washing the streets or laying dust in sultry weather.

The street-washer pipe L is connected by a union-joint, K, with a casing'` provided with doors, S Q, to

disconnect the 'joint when the pipe D is to be withdrawn from its casing.

The internalservice-pipe'R is, within the wooden casing N, provided with doors, 'O and P, for the purpose above set forth.

The Wooden casings are also provided with openings, at some convenient part, for the admission of steam or hot air.

Iann' aware of the patent granted to E. P. Vaux, dated October 15, 1867, for a gas or water-pipe enclosed in an outer casing, the space between the two forming a hermetically-sealed chamber, but as thisforms no part of my invention, I do not Wish to claim it; but having thus described my invention- What I claim as new, and desire to secure by Letters'Patent, is

The casings E, G, and N, enclosing the service-pipes, forming spaces around the latter, the casings being provided withapertures d, for the introduction of 4steam or hot ail` to the spaces surrounding the service-pipes, which latter are connected by union-joints immediately at the points of junction of the several sections of the casing E Gr, doors O P Q R being formed in casing N, opposite the joints of pipes L J R. all constructed and arranged-in the manner and for the purposes substantially as shown and described. Y

The above specification of my invention signed by me, this 18th day of April,`1868.

' EDWARD HAGAN.

Witnesses:

ALEX. F. ROBERTS, J. M. COVINGTON. 

